I recently resuscitated my PS2, and so now I'm looking for some good games to play on it that I never got the chance to play before. So, please, feel free to suggest your best/favorite games!

Games I have/played:

Final Fantasy X
Final Fantasy X-2
Final Fantasy XII
Kingdom Hearts
Kingdom Hearts II
Lord of the Rings: Return of the King (ugh)
Lord of the Rings: The Third Age (someone kill me)

Games I plan to get:

Xenosaga Episode I, II, & III
Drakengard I & II (probably)

You can even mention games I already have listed if you want. So yeah, what are the best PS2 games for you?